Antarctic ice sheet

The first-ever gravity survey of the entire Antarctic ice sheet, conducted using data from the NASA/German Aerospace Center Gravity Recovery and Climate Experiment (Grace), concludes the ice sheet's mass has decreased significantly from 2002 to 2005.

ice mass loss

This figure shows the ice mass loss in Antarctica as observed by Grace over the period 2002 to 2005 measured in cubic kilometers per year. The ice mass loss observed contributes about 0.4 millimeters (.016 inches) per year to global sea level rise.

ice mass loss

This figure shows the ice mass loss in Antarctica as observed by Grace over the period 2002 to 2005 measured in cubic kilometers per year. The ice mass loss observed contributes about 0.4 millimeters (.016 inches) per year to global sea level rise.

Bill Detwiler is Managing Editor for ZDNet's sister site TechRepublic Pro and the host of Cracking Open, CNET and TechRepublic's popular online show. He was most recently Head Technology Editor for TechRepublic. Prior to joining TechRepublic in 2000, Bill was an IT manager and desktop support technician in the social research and energy i...
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